20 



Sir D. Bruce and others. G. brevipalpis as a 



11. Schultz, E., " Aus dem Gebiete der Eegeneration bei Turbellarien," ' Zeit. f. Wiss. 



Zool.,' vol. 72, p. 1 (1902). 



12. " tiber Eeduction," ' Arch. Ent. Mech.,' vol. 18, p. 555 (1904). 



13. Stevens, N. M., " A Histological Study of Regeneration in Simplicissima, Metadata, 



and Morgani" 'Arch. Ent. Mech.,' vol. 24, p. 350 (1907). 



14. Stockard, C. R, "Studies in Tissue Growth. II. — On the Rate of Regeneration 



and the Reaction of the Regenerated Tissue on the Old Body," 'Journ. Exp. 

 Zool.,' vol. 6, p. 433 (1909). 



15. Stoppenbrink, E., " Der Einfluss herabgesetzer Ernahrung auf den histologischen 



Bau der Siisswassertricladen," ' Zeitschr. Wiss. Zool.,' vol. 79, p. 496 (1905). 



16. Wendt, A., " Ueber den Bau von Gunda ulva," 'Arch. f. Naturgesch.,' 54 Jahrg. 



vol. 1, p. 252, Berlin, 1888. 



Glossina brevipalpis as a Carrier of Trypanosome Disease in 



Nyasaland. 



By Surgeon-General Sir David Bruce, C.B., F.K.S., A.M.S.; Major A. E. 

 Hamerton, D.S.O., and Captain D. P. Watson, R.A.M.C. ; and Lady 

 Bruce, RB.C. (Scientific Commission of the Boyal Society, Nyasaland, 

 1912-14.)* 



(Received March 25,— Read April 30, 1914.) 

 [Plate 1.] 



Introduction. 



Glossina brevipalpis (Newstead) is found at many spots along the west 

 shore of Lake Nyasa. The nearest point to the Commission's camp at Kasu 

 where they were at all common was at the mouth of the Lingadzi river 

 (13° 27' S. lat., 34° 19' E. long.). This was 50 miles away, but with the aid 

 of a motor-cycle specimens of these flies were brought up to the camp. 



It is proposed in this paper to give: (I) a short account of the habits of 

 this tsetse fly ; (II) the results of the dissection of the flies ; (III) the 

 infectivity of the wild flies ; and (IV) the result of various transmission 

 experiments. 



One of the members of the Commission camped on the Lake-shore from 

 April 26 to May 10, 1913, to superintend the catching and sending to the 

 camp of these flies. He has supplied the following account of their 

 habits : — 



* Major D. Harvey, R.A.M.C., took part in the work described in this and the four 

 following papers ; but, having left the Commission in September, 1913, before the 

 reports were drawn up, his name does not appear in the titles. 



